Ulrich Drepper <drepper@redhat.com> writes:
>> Some software (like procps) needs the HZ constant in the kernel. It's
>> sometimes determined by counting jiffies during a second. The attached
patch
>> just "publishes" the HZ constant in /proc/sys/kernel/hz.
>
>And what is wrong with
> getconf CLK_TCK
>or programmatically
> hz = sysconf (_SC_CLK_TCK);
In short: it doesn't work: it reads 100 while I changed it to 1024 in my
kernel.
> Update your libc and this info will come from the kernel.
Neither RedHat 6.2 (glibc-2.1.3) nor SuSE 7.2 (glibc-2.2.2) works, so what
glibc version are you suggesting?
And suppose I have the right glibc, then the kernel may become a little
confusing:
bash# cd linux-2.4.6
bash# find . -name "*.c" -exec grep -q CLK_TCK {} \; -print
#define _SC_CLK_TCK 3
./arch/sparc/kernel/sys_sunos.c
#define _SC_CLK_TCK 3
./arch/sparc64/kernel/sys_sunos32.c
#define SOLARIS_CONFIG_CLK_TCK 7
./arch/sparc64/solaris/misc.c
bash# find . -name "*.h" -exec grep CLK_TCK {} \; -print
#define _SC_CLK_TCK 3
./include/asm-sparc64/unistd.h
Seems OK for sparc and maybe for solaris, for others it's a mess.
Rolf
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This archive was generated by hypermail 2b29 : Mon Jul 23 2001 - 21:00:07 EST